XML 174 R153.htm IDEA: XBRL DOCUMENT v3.22.0.1

Share-based compensation - Additional Information about Awards Granted under Omnibus Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of awards vested	$ 76.6	$ 5.0	$ 3.5

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

+ References

No definition available.

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_PlanNameAxis=sig_OmnibusPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: